Laud-lamp



' H. TMUNSUN.

Lamp.. i

No. 3,243. 'Patented Sepr.1,1843.

UNTTED sTATEs PATENT oEEroE.

HARVEY TOMLINSON, OF GENEVA,l NEV YORK.

LAIRD-LAMP.

Specicaton of Letters Patent No. 3,243, dated September 1, 1843.

T 0 all whom t may concern:

Be it known that I, HARVEY ToMLINsoN, of Geneva, in the county of Ontario and State of New York, have invented an Improved Manner of Constructing' a Lamp for the Burning of Lard, and other Concrete Fatty Substances; and I do hereby declare that the followingis a full and exact description thereof.

My improvements in the lard lamp consistin the manner in which I attach a glass chimney or burner thereto and raise and depress the same, and in the manner in which I regulate t-he draft that passes through a central tube to supply air to the interior of the hollou7 wick.

In the accompanying' drawing, Figure l, is a perspective view of my lamp, from t-he bottom, A, of which rises a hollow stem, B, which has two, three, or more, holes through it for the admission of air, as shownat a, a, a.

C, is the body of the la.mp,`which I make conical, as shown inthe drawing. Around this conical body passes a ring, or hook, E; to this ring I solder wires, Z), Z), o, which spring' inward, and, by their elasticity, serve to support the chimney, or burner, H, at any desired height. The hoop, E, with the burner, H, att-ached to it, `may be removed and replaced, at pleasure.

F, is a Ventilatingring', or ferrule, which slides up and down on the hollow stem, B, and may be made to close the whole, or a portion, of the holes, ma.; u

Fig. 3, shows thehollowT stem, B, having a hollow tube, c, c,- risingabove it, through which tube the air is to lpass from the stem, B.

I, F ig. 4, is a wick tube, which should be made of copper; this is of such size as to slide freely over the tube, c, c, and its outside is to be covered with a hollow wick made of canton flannel, or of any suitable cotton fabric. The tube, I, serves to conduct the heat downward from the flame to the lard, or other fatty matter.

D, Fig'. 5, is a cap, or cover, which shuts down within the body, C` of the lamp, and has a central perforation through it,v at J, of such size as to admit the wick through its center.

Uien it is desired to carry a lamp of this kind about the house, the burner and ring, E, may be removed; its combustion will then be less rapid, and the light proportionally decreased;` The light, also, may be decreased to any desired extent, while the burner is in place, as this may be depressed so as to be brought nearly, or quite, into contact with the cap, D, thus shutting off the exterior draft: and the ferrule, F, may be made to cover any number of the holes, a, a, thus shutting' olf any portion of the interior draft. The light may be thus reduced to that of a mere taper, furnishing' an effective and convenient night light, the brilliancy of which may be increased almost inst-antaneously.

Having' thus fully described the nature of my improvements in the lamp for burning' lard, or other concrete.` fatty substances, and shown the manner in which the same operates, what I claim therein as new, and desire to secure by Letters Patent, is

The manner of regulating the draft there of by the combined operation of the ventilatine,- ring, or ferrule, F, and the shifting chimney` or burner, H; the respective parts being so formed and arranged as to operate in the manner herein fully made known; not intending, however, to limit myself to the precise form of the parts as herein reprew sented, but to vary these as I may think proper, while I attain the same end by means substantially the same.

HARVEY TOMLINSON.

Witnesses E. I. AVERILL, J. W, CRAWFORD, 

